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Occlusal CariesNCT06097143

Clinical Performance of Flowable Giomer Versus Nanofilled Composite in Conservative Occlusal Cavities

A study testing Flowable Giomer, Flowable Nano-filled composite with S-PRG barrier coat and Flowable Nano-filled composite in people with Occlusal Caries, run by Cairo University at 1 site in Egypt.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

With limited evidence-based information in literature the goal of this clinical trial is to learn about Flowable Giomer and compare it to Nanofilled Flowable Composite in Conservative Occlusal Cavities. Read more about this study

Who is it for?
Ages 19 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Occlusal Caries
What is being tested?
Flowable Giomer, Flowable Nano-filled composite with S-PRG barrier coat and Flowable Nano-filled composite
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
1 siteEgypt
Study dates
15 Dec 2023to 21 Jun 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 19 to 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Unilateral or Bilateral small Class I carious lesions
  • Patients with good oral health
  • Small Class I carious lesion in occlusal pits and fissures

Who cannot join

  • Existing systemic diseases
  • Severe medical complications
  • Allergy history concerning methacrylates
  • Pregnancy
  • Heavy smoking
  • Evidence of severe bruxism, clenching or temporomandibular joint disorders
Show all 12Show fewer
  • Presence of existing occlusal restoration
  • Periapical or pulpal pathology
  • Tooth hypersensitivity
  • Possible prosthodontic restoration of teeth
  • Endodontically treated teeth
  • Severe periodontal affection

Trial locations and contacts

1 site in 1 country.

Egypt1 site
  • Faculty of Dentistry, Cairo University

    Cairo, Cairo Governorate

Other trials in Egypt

About this study

Official title: Performance of Flowable Giomer Versus Nanofilled Flowable Composite With or Without Giomer Coat In Conservative Occlusal Cavities: 18 Months Randomized Clinical Trial

With limited evidence-based information in literature the goal of this clinical trial is to learn about Flowable Giomer and compare it to Nanofilled Flowable Composite in Conservative Occlusal Cavities. It is beneficial to evaluate the newly introduced material using a randomized controlled clinical trial to test the null hypothesis that this new flowable giomer (Shofu™ Beautifil Injectable X, Shofu Dental Corp., Japan) and conventional resin-based nano-filled composite (Filtek™ Z350 XT 3M ESPE, USA) which will then be coated with (Shofu™ PRG Barrier Coat, Shofu Dental Corp., Japan) will have the same clinical performance as flowable resin composite as a preventative restorative restoration in permanent molars.

Read the detailed description

This study will be conducted to clinically evaluate caries prevention and marginal integrity of flowable giomer and flowable resin composite coated with S-PRG in comparison to flowable resin composite as a preventative resin restoration in patients requiring minimally invasive simple class I cavities in permanent molars over 18 months test period.

Teeth that meet the inclusion criteria will be selected. The occlusal surfaces will be cleaned by pumice and a low speed polishing brush. Baseline recording of carious lesions will be carried out using DIAGNOdent pen. Cavity preparation will be carried out using number 330 (Mani, Inc., Japan) bur.

All the tested materials Shofu™ Beautifil Injectable X, (Shofu Dental Corp., Japan flowable composite) and Filtek™ Z350 XT (3M ESPE, USA) Flowable composite: Conventional resin-based nano-filled flowable composite which will then be coated with Shofu™ PRG Barrier Coat, (Shofu Dental Corp., Japan) will be used according to manufacturer instructions and comparator restorative material Filtek™ Z350 XT (3M ESPE, USA) Flowable composite.

All restorations will be finished using flame-shaped finishing stone (Mani, Inc., Japan) and polished using rubber cups (Kerr Corporation, Orange, CA, USA).

The primary and secondary outcomes will be measured at four intervals 1 week after placement, 6 months follow up, 12 months follow up and 18 months follow up.

Conditions
Occlusal Caries
Being tested
Flowable Giomer, Flowable Nano-filled composite with S-PRG barrier coat, Flowable Nano-filled composite

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Flowable GiomerOther

    Pre-reacted Glass Ionomer (PRG) filler is added to resin to create giomer, a dental adhesive material. Fluoride release and recharge, acid resistance, an anti-plaque effect, dentin remineralization, and acid buffering capacity are some of the benefits of giomer.

  • Flowable Nano-filled composite with S-PRG barrier coatOther

    Flowable composites are claimed to have a higher wetting ability of the tooth surface and thus ensure penetration into all surface irregularities in layers of minimal thickness. As a result of the higher amount of filler particles, it is noted that flowable composites have less porosity than conventional resin-based sealants. Moreover, flowable composite materials have better mechanical properties which lead to increased durability and longevity of the restoration.

    The PRG Barrier Coat is a resinous coating substance that shields the enamel surface from demineralization brought on by acidic attack. Near the coated surface, S PRG filler ions in PRG Barrier Coat have been found to have an acid-neutralizing effect. F and Sr released by PRG Barrier Coat can be effectively absorbed by the tooth substrate to prevent demineralization thus hindering the progression of caries.

  • Flowable Nano-filled compositeOther

    Flowable composites are claimed to have a higher wetting ability of the tooth surface and thus ensure penetration into all surface irregularities in layers of minimal thickness. As a result of the higher amount of filler particles, it is noted that flowable composites have less porosity than conventional resin-based sealants. Moreover, flowable composite materials have better mechanical properties which lead to increased durability and longevity of the restoration.

Study groups in NCT06097143
Study groupRoleWhat they receive
Flowable GiomerExperimentalPatients with conservative carious class I occlusal cavities will be treated with Shofu™ Beautifil Injectable X, Shofu Dental Corp., Japan flowable composite Novel bio-active flowable resin containing nano S-PRG (Surface Pre-Reacted Glass ionomer).
Receives: Other: Flowable Giomer
Nano-filled Flowable Composite with S-PRG barrier coatExperimentalPatients with conservative carious class I occlusal cavities will be treated with Filtek™ Z350 XT 3M ESPE, USA Flowable composite: Conventional resin-based nano-filled flowable composite which will then be coated with Shofu™ PRG Barrier Coat, Shofu Dental Corp., Japan.
Receives: Other: Flowable Nano-filled composite with S-PRG barrier coat
Nano-Filled Flowable CompositeActive comparatorPatients with conservative carious class I occlusal cavities will be treated with Filtek™ Z350 XT 3M ESPE, USA Flowable composite: Conventional resin-based nano-filled flowable composite.
Receives: Other: Flowable Nano-filled composite

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Fracture and Retention of Material

    World Dental Federation (FDI) criteria (Hickel et al.,2010) Scores:

    1. Clinically excellent/ very good 1.1 No fractures/cracks
    2. Clinically good 2.1 Small hairline crack
    3. Clinically sufficient/ satisfactory 3.1 Two or more larger hairline cracks and/or material chip not affecting the marginal integrity or approximal contact
    4. Clinically unsatisfactory (but repairable) 4.1 Material chip fractures which damage marginal quality or approximal contacts 4.2 Bulk fractures with partial loss (less than half of the restoration)
    5. Clinically poor (replacement necessary) 5.1 Partial or complete loss of restoration or multiple fractures

    Measured: T0= 1 week postoperative T1= 6 months follow up T2= 12 months follow up T3= 18 months follow up

Secondary outcomes (6)
  1. Occlusion and wear

    World Dental Federation (FDI) criteria

    Measured: T0= 1 week postoperative T1= 6 months follow up T2= 12 months follow up T3= 18 months follow up

  2. Marginal Adaptation

    World Dental Federation (FDI) criteria

    Measured: T0= 1 week postoperative T1= 6 months follow up T2= 12 months follow up T3= 18 months follow up

  3. Form and contour

    World Dental Federation (FDI) criteria

    Measured: T0= 1 week postoperative T1= 6 months follow up T2= 12 months follow up T3= 18 months follow up

  4. Dental hard tissue defects at restoration margins

    World Dental Federation (FDI) criteria

    Measured: T0= 1 week postoperative T1= 6 months follow up T2= 12 months follow up T3= 18 months follow up

  5. Postoperative hypersensitivity/pulp status

    World Dental Federation (FDI) criteria

    Measured: T0= 1 week postoperative T1= 6 months follow up T2= 12 months follow up T3= 18 months follow up

  6. Incidence of new carious lesions

    Intra-oral quantitative light-induced fluorescence applied on the occlusal surface of permanent molars with initial Class I caries using DIAGNOdent pen

    Scores:

    0 - 14 indicate a healthy occlusal surface 15 - 20 indicate the presence of enamel caries, 21 or more indicate the presence of dentinal caries

    Measured: T0= 1 week postoperative T1= 6 months follow up T2= 12 months follow up T3= 18 months follow up

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Oct 2023
  2. Study start15 Dec 2023
  3. Primary completion19 Jun 2025
  4. Study completion21 Jun 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06097143
Sponsor's protocol ID
Giomer Based Class I Cavities
Status last verified
Nov 2023
First submitted
18 Oct 2023
Last updated
29 Sep 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Ogawa Y, Sayed M, Hiraishi N, Al-Haj Husain N, Tagami J, Ozcan M, Shimada Y. Effect of Surface Pre-Reacted Glass Ionomer Containing Dental Sealant on the Inhibition of Enamel Demineralization. J Funct Biomater. 2022 Oct 14;13(4):189. doi: 10.3390/jfb13040189.

    PubMed 36278658
  • Baroudi K, Rodrigues JC. Flowable Resin Composites: A Systematic Review and Clinical Considerations. J Clin Diagn Res. 2015 Jun;9(6):ZE18-24. doi: 10.7860/JCDR/2015/12294.6129. Epub 2015 Jun 1.

    PubMed 26266238
  • Jafarzadeh M, Malekafzali B, Tadayon N, Fallahi S. Retention of a Flowable Composite Resin in Comparison to a Conventional Resin-Based Sealant: One-year Follow-up. J Dent (Tehran). 2010 Winter;7(1):1-5. Epub 2010 Mar 31.

    PubMed 21998768
  • Asefi S, Eskandarion S, Hamidiaval S. Fissure sealant materials: Wear resistance of flowable composite resins. J Dent Res Dent Clin Dent Prospects. 2016;10(3):194-9. doi: 10.15171/joddd.2016.031. Epub 2016 Aug 17.

    PubMed 27651887
  • Hickel R, Peschke A, Tyas M, Mjor I, Bayne S, Peters M, Hiller KA, Randall R, Vanherle G, Heintze SD. FDI World Dental Federation: clinical criteria for the evaluation of direct and indirect restorations-update and clinical examples. Clin Oral Investig. 2010 Aug;14(4):349-66. doi: 10.1007/s00784-010-0432-8. Epub 2010 Jul 14.

    PubMed 20628774
  • Jaafar N, Ragab H, Abedrahman A, Osman E. An In Vivo Investigation of Diagnostic Performance of DIAGNOdent Pen and the Canary System for Assessment and Monitoring Enamel Caries under Fissure Sealants. J Int Soc Prev Community Dent. 2020 Jun 15;10(3):246-254. doi: 10.4103/jispcd.JISPCD_480_19. eCollection 2020 May-Jun.

    PubMed 32802769
  • Hickel R, Mesinger S, Opdam N, Loomans B, Frankenberger R, Cadenaro M, Burgess J, Peschke A, Heintze SD, Kuhnisch J. Revised FDI criteria for evaluating direct and indirect dental restorations-recommendations for its clinical use, interpretation, and reporting. Clin Oral Investig. 2023 Jun;27(6):2573-2592. doi: 10.1007/s00784-022-04814-1. Epub 2022 Dec 12.

    PubMed 36504246
  • Kawasaki K, Kambara M. Effects of ion-releasing tooth-coating material on demineralization of bovine tooth enamel. Int J Dent. 2014;2014:463149. doi: 10.1155/2014/463149. Epub 2014 Jan 21.

    PubMed 24578706
  • Funato Y, Matsuda Y, Okuyama K, Yamamoto H, Komatsu H, Sano H. A new technique for analyzing trace element uptake by human enamel. Dent Mater J. 2015;34(2):240-5. doi: 10.4012/dmj.2014-127. Epub 2015 Feb 25.

    PubMed 25740308
  • Shaalan OO, Abou-Auf E, El Zoghby AF. Clinical evaluation of flowable resin composite versus conventional resin composite in carious and noncarious lesions: Systematic review and meta-analysis. J Conserv Dent. 2017 Nov-Dec;20(6):380-385. doi: 10.4103/JCD.JCD_226_17.

    PubMed 29430087

Questions about this trial

What is this clinical trial studying?

A study testing Flowable Giomer, Flowable Nano-filled composite with S-PRG barrier coat and Flowable Nano-filled composite in people with Occlusal Caries, run by Cairo University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Fracture and Retention of Material (time frame: T0= 1 week postoperative T1= 6 months follow up T2= 12 months follow up T3= 18 months follow up). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06097143, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Sep 2025.

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